Truck-frame for street-cars



(No Model.) 2`Sheets-Sheet 1.

H. E. HADDOCK. TRUCK PRAMBTOR STREET GARS.

No. 495,326. Patented Apr` 11, 1893.

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2 Sheets-Sheet 2.

H. E. HADDOGK. .TRUCK FRAME FOR STREET CARS.

Patented Apr. 11, 1893.

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UNITED STATES PATENT OFFICE.'

HARRY E. HADDOOK, OF PHILADELPHIA, PENNSYLVANIA.

ATRUCK-FRAME FOR STREET-CARS.

SPECIFICATION forming part of Letters Patent No. 495,326, dated April11, 1893.

Application tled December 30, 1892. Serial No. 456.783. (No model.)

To all whom t may concern/.-

Be it known that I, HARRY E. HADDOCK, a citizen of the United States,and a resident of Philadelphia, Pennsylvania, have invented certainImprovements in Truck-Frames for Street-Cars, of which the following isa specication.

The object of my invention is to provide an extremely rigid independenttruck frame for street cars, and especially for electric cars in whichthe motor is carried by the truck, the frame being such as to providefor an extended range of movement of the supporting springs, and beingotherwise constructed With reference to providing proper support for theends of the car body and platforms, wit-hout the use of braces, andsecuring rigidity With the employment of the smallest possible number ofparts.

In the accompanying drawingsz-Figure 1, is a side viertr partly insection of a truck frame constructed in accordance with my invention.Fig. 2, is a plan View of the same. Fig. 3, is a longitudinal section ofpart of the frame on a larger scale than shown in Fig. 1; and Fig. 4, isa transverse section, also on a larger scale than shown in Fig. l.

The frame comprises the central, continuous, rectangular portion A andouter bars B B, both the frame and bars running throughout the length ofthe car, and said bars being secured to the frame through the medium ofthe spring sockets D, which are riveted in place between the bars, andalso by means of interposed blocks or filling pieces a, which arelikewise interposed between and riveted to the bars, the riveting beingpreferably effected while the rivets are hot so that the cooling of therivets will serve to more tightly bind the parts together.

Both the frame A and side bars B have bent portions or yokes indicatedrespectively at A and B', which yokes pass over the boxes F whichreceive the journals of the car axles, these journal boxes havingprojecting ears F which serve as supports for the spring socketsadjacent to the boxes, packing b of rubber, fiber, or like materialbeing preferably introduced between the spring socket and the journalbox ear to prevent concussion.

Each of the spring sockets D which is mounted upon an ear of the journalbox has a downwardly projecting sleeve d, adapted to an opening in saidear and encircling the bolt G which depends from the bar I upon whichthe car sill is mounted, said bolt passing down through the spring andthe various bolts G being connected at theirloWer ends by means of alongitudinal bar H. The tubular projection or sleeve on the springsocket also serves to give said socket a good bearing against thejournal box ear and thus serves to prevent either longitudinal orlateral movement of the one independent of the other, While theformation of the bend or yoke in the frame and the mounting of thespring sockets upon the ears of the journal box provide an extendedrange for the springs even With a low hung car body, and thus insure theeasy riding of the latter. The mounting of the frame upon the journalbox ears instead of upon the top of the box, also shortens the extent ofprojection of the ends of the frame beyond the supporting points, andthus lessens the tendency to spring under heavy strain.

I mount upon the projecting ends of the frame springsJ Which areintended to provide support for the ends and platforms of the car whenthe same is heavily loaded, said springs .I being somewhat shorter thanthe springs D so that they will not come into action until the saidsprings D are partially compressed.

In making the central rectangular frame A, I prefer to Weld togetheropposite U-shaped halves of said frame, the Welding points being at thecenter of each end of the frame, but a continuous frame might be made byriveting togetherfoverlapping portions of the frame at these points orby riveting the abutting portions of the frame to a separate bar so asto insure strength and rigidity in the central frame.

Having thus described my invention, I claim and desire to secure byLetters Patentl. The combination of the axle boxes having projectingears, a continuous-bar truck frame having bent or yoked portions passingover the axle boxes, and spring sockets secured to said frame andmounted upon the ears on the axle boxes, substantially as specifled.

IOO

2. A truck frame composed of a central rectanguluar frame and outerlongitudinal bars, in combination with spring sockets securing said barsand frame together, and axle 5 boxes having ears upon Which said springsockets rest, substantially as specified.

3. The combination of the central rectangular frame and the oppositeside bars, the axle boxes having projecting ears, and the spring 1osockets serving as a means of securing the frame and bars together, saidsockets having tubular projections or sleeves passing through openingsin the ears on the axle boxes, substantially as specified.

In testimony whereof I have signed my 15 name to this specification inthe presence of two subscribing witnesses.

HARRY E. HADDOCK. Witnesses:

FRANK E. BEoHToLD, JosEPH'H. KLEIN.

